Webster davis



(No Model.)

E. LAYS. DUMPING snow.

Patented June 28,1898.

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'mi Nonms Pzrzns co. PHOTO-umn., WASHINGTON. n n:`

llNrrn EDUARD LAYS, OF

NEW YORK, N. Y.'

DUMPlNci-scow.

SPECIFICATION forming part of Letters Patent No. 606,289, dated June 28, 1898.

Application ned April 2,1897. serrano. 630,356. (Numan.)

T0 all whom t may concern:

Be it known that I, EDUARD LAYS, of New York, in the State of New York, have invented certain new and useful Improvements in Dumping-Scows, of which the following is a specification, reference being had to the accompanying drawings.

In said drawings, Figure l represents a top or plan view of a scow embodying 1n yinvention. Fig. 2 is a vertical longitudinal section through the same; and Fig. 3 is a transverse section on the line 3 3 of Fig. 1, looking aft.

Myinvention is especially adapted to such scows as are used for the removal of garbage, dac., and whose contents are to be dumped in open water, the features of improvement relating to the read y manipulation of the dumping mechanism and to the rapidity and completeness with which the load can be discharged.

Referring to the drawings, A represents the hull, and a the deck, of the scow,which is preferably of the form shown, somewhat wider at the stern S than at the bow B and built, eX- cept in those details to which my invention relates, in the ordinary manner.

C represents the central well or open hold for the load of garbage or other material to be transported, the plan outline of said well being approximately that of the scow itself, as indicated, and the opening of the deck being surrounded by coamings c. The sides of the well are formed with double walls O and C2, between which is a free space, which may be open at the bottom, as indicated. For pur poses of convenience the walls C will be termed the false walls and the walls C2 the true walls of the well. Y

The bottom of the well (and also that portion of the hull itself which corresponds with the opening of the well) consists off a series of doors or gates D D D2, pivotally secured to the true walls C2 at d d d2, respectively, so that said doors shall swing fore and aft to open or close, the opening movement of all the doors being in the same direction and their closing movements being all in the reverse direction. The free end of each door,

when closed, as indicated in Fig. 2, lits snugly into a groove formed in the face against which it closes, so that the bottom of the hull shall be substantially flush.

The lower ends of the false walls G' are ar ranged a little above the bottom of the true walls C2, and the doors D D D2 extend complete] y across the space between the true walls and, when closed, bring up against the bottom of the false walls. In the interspace between the true and false walls are arranged hoisting-chains F', attached to the doors D D' Dg'on each side, said chains passing over friction rollers or pulleys F2 and leading upward to and being connected with windlass* rollers F, running longitudinally along the sides of the well and mounted in suitable bearings near the ends thereof. Said windlass rollers are provided with pawl-andratchet devices f' and with actuating-wheels f, which may be turned by means of handspike, or operated by power, if the scow is provided with a steam-engine,

Transverse shields E E E2, beveled on their upper faces to shed the material when dumped, extend across the well above the pivoted ends of the doors. A passage-Way I extends from the after end of the well C out through thestern of the scow, said passageway being controlled by means of a door J, pivoted to swing fore and aft upon transverse supports j and, when closed, bringing up against a sill or upward projection t' in the bottom of the passage-way, so as to make a tight joint and thus close the after end of the well. V The door J is opened or closed by meansof chains I-I H', the former of which is attached to the aftersideof the door and leads up through the stern of the scow to a windlass-roller G, the other chains H' being "attached to the forward side of the door J and :leading around the rollers or pulleys H2 and thence to the aforesaid windlass-roller G, around which, however, they are coiled in the opposite direction from the chain H. Rotation of the windlass-roller G in either direction will therefore pay off one chain and wind up theother, so as to properly open or close the door. lThe roller G is provided with an ICO by means of the wheel N, so as to open or close the door by raising or lowering the same.

The method of operation is as follows: When the scow is to be loaded, the doors D, D', D2, J, and L are all closed tightly. The well is filled with the garbage or other material which is to be transported and the scow is towed to the place of discharge. The windlass-rollers F are then released by throwing back the pawls at f' and the doors D D/ Dzfall to asubstantiallyperpendicular position, their movement beyond that point being prevented by the chains F. If for any reason the doors should fail to fully open, the scow is towed backward for a short distance,when the resistance of the water will force them completely open. The heavy contents of the well having been thus discharged, the scow is towed forward, when the resistance of the water against the forward sides of the doors tends to raise them into position and thus facilitates their being closed by the windin g up of their chains upon the windlassrollers F. The bow door L and stern door J are then opened, and the current caused by the forward movement of the scow rushes through the well, cleansing it from floating matter which has failed to be discharged through the bottom doors. This feature is of great importance in the dumping of garbage, since often a very large portion of the contents of the well floats, and under the former system it is found very difficult to get rid of this floating matter. The sweep of the water, however, effected by means of the system above described will soon substantially cleanse the well. The bow door L is then closed, and as the current through the well then ceases the stern door J can be readily closed by turning the windlass-roller Gin the proper direction.

In the foregoing description I have referred to the scow as being towed, since such is usually the case; but it is obvious that the scow may be provided with independent motive power, and, as above stated, this machinery may be utilized in connection with the actuating devices of the various doors.

I do not limit myself to the exact number of bottom doors shown, as the same may be increased or diminished in accordance with convenience of construction, as required by the actual size of the scow itself.

I am aware that it is not new to provide a scow with a pair of doors whose members open in opposite directions-wiz. one member fore and the other aft--and I do not claim such arrangement. It willbe obvious that if doors of this character were placed in the bottom of a scpw/any movement which would tend to rclose one door would tend to jam the other open, and consequently the ease of operation which characterizes this feature 'of my invention would be lacking. Hence, so far as relates to the subject-matter covered by my first claim, I limit myself to the use of doors which all open in a like direction, and consequently all close in the reverse direction.

and the scow moved forwardly the flexible connections will allow the doors to close by the pressure of the water against their forward sides; substantially as described.

2. The combination with the hull having a central longitudinal well, of a plurality of separate andindependent bottom doors swinging fore and aft and all opening downwardly toward one end of the hull, shafts extending longitudinally at opposite sides of the well, and flexible connections extending from said shafts down to the ends of every door; whereby as the scow is drawn forwardly the pressure of water on the forward sides of the doors will swing them toward their closed positions and allow the iiexible connections to be easily wound on their shafts; substantially as described.

3. The combination with the hull havinga central longitudinal well, of a series of transverse, hinged doors forming the bottom of the Well and lying flush with the bottom of the hull; all of said doors swinging downwardly and toward the same end of the hull, transverse shields crossing the well over the hinged edges of the doors, and means for operating the doors; substantially as described.

4. In a dumping-scow provided with a central well for the reception of its load, said well having true walls, C2, and false walls, C', arranged with an interspace, and having the lower ends of the false walls arranged above the lower ends ofthe true walls, the combination, with the hull, of the bottom doors swinging fore and aft, and extending entirely across between the true walls; actuatingchains connected with said doors and running upward through the interspaces between the true and the false walls, and means substantially as set forth whereby said chains may IOO IIO

be shifted to raise and secure said doors or permit them to drop.

' 5. In a dumping-scow, provided with a eentral well for the reception of its load, and also provided with bow and stern passage-ways communicating with said well, the combination with the hull, of the bottom doors swinging fore and aft; means for raising and securing said doors or permitting them to drop; the bow door, L, means substantially as set forth for actuating the same to open or close the bow passage; the stern door, and means substantially as set forth for actuating the same to open or close the stern passage.

EDUARD LAYS. lVitnesses: i

HENRY W. AVERY, BENJ. F. CRANE.

It is hereby oertied that the name of the patentee in Letters Patent No. l606,289, granted June 28, 1898, for an improvement in Dumping-Soows, was erroneously Written and printed Eduard Lays, Whereas said name should have been Written and printed Edward Lays; and that the said Letters Patent should be read With this oorreeton therein that the same may conform to the record of the oase in the Patent Office.

Signed, oountersigned, and sealed this 12th day of July, A. D., 1898.

[SEAL] WEBSTER DAVIS,

Assistant Secretary of the Interior. Countersgned C. H. DUELL,

Oommtsstoner of Patents. 

